Steam-engine



(No Model.)

W. E. HILL.

STEAM ENGINE.

N. PETERS. PholmLM-ographgn Wnhingiom ac.

UNITED 1 STATES PATENT OFFICE.

WILLIAM. EQHILL, or KALAMAZOO, MICHIGAN.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 277,034, dated May 8,1883,

Application filed August 10, 1882. (No model.)

To all whom it may concern:

Beit known that I, WILLIAM E. HILL, a citizen of the United States,residing at Kalamazoo, county of Kalamazoo, State of Michigan, haveinvented a new and useful Steam- Engine,'of which the following is aspecification.

My invention has for its object certain improvements in steam and airfeeds for millcarriages, effecting greater economy, utility, and safety.

Heretofore such devices have been provided with avalve centrally locatedbetween the ends of the cylinder, in which the piston is located,necessitating an undue amount of pipe, and causing the steam to becomegreatly condensed before reaching the cylinder.

In my device I locate a valve at each end of the cylinder, inclosed in avalve-chest having opening immediately into the cylinder at the pointswhere the effect of the steam is most needed. Other novel features areset forth in the following detailed description.

In the drawingsforming a part of this specification, Figure 1 is asideelevation of the device complete; Fig.2, a longitudinal section of theleft-hand end of the cylinder on line 2 2 in Fig.3; Fig. 3,an end view,looking from the left of Fig. 1; Fig. 4, a bottom view of one end ofcylinder; Fig.5, a valve in perspective, and Fig. 6 a mode of couplingthe cylinder.

E is the log-carriage; B, the cylinder, in which is located the pistonH, the rodl of which connects at h with said carriage. The rod isprovided with a disk or head, H, as shown in Fig. 2.

R R are the valve-chests, located at each end of the cylinder B, eachcontaining a valve, v, connected by the hollow rod or pipe a.

L is a lever for operating the feed, it being connected with thevalve-rod a by means of rods 0 e and crank-shaft 'w. A weight, f, isconnected with the lower end of lever L by a chain, c, which runsbetween two frictionwheels, 8 8. By this means said lever is brought toan upright position when released by the operator. The steam-sh ppl ypipes from the boiler are connected at t t.

D D is the exhaust-pipe, connecting with each valve-chest, with deliveryat u.

c 0 illustrate the floor of the mill. The valvechests R R are formedwith two ports,

, them from one chest R to the other.

R z, the former communicating directly with .necting with port it bymeans of the channel or passage a between the cylinder and chest.The'valves v e and valve-rod a are hollow, to admit of the passage ofsteam or air through The valve 11 is provided with a packing-band, 8,located in a recess designed for it. A hole, 0, communicates from'thehollow center of said valve with said band-recess for the purpose ofadmitting steam or air under said packing to expand it, imparting to itan easy yet effectual engagement with the wall of said chest R. At theback end of valve 12 a space is left around that part of valve'rod a.which plays in the chest R, termed an exhaust-passage, as it allows theexhaust-steam to pass from the cylinder 13 to the delivery a.

In the operation, by admitting steam or air, or whatever element is usedas a power, into either valve-chest at i, (see Fig. 2, this being theleft-hand chest in Fig. 1,) the valve 1) and its rod a are forced to theright, closing port R and allowing the steam to enter cylinder B throughport 2 n n, which forces the piston H and the carriage E, connectedwith, it to the right. Of course at the other end of the cylinder thereverse order has taken place in the movement of parts. A portion of thesteam has now passed through. valves 1; and .valve rod or pipe (1. tothe other valve-chest R without having been detained by any intermediatevalve. When piston H moves back, and also the valve, the supply of steamis shut off, as in Fig. 2, and the exhaust-passage It isopened, bringingthe exhaust-space at the rear of the valve 12 in the properlocation toallow the steam to passdown through orificca. When piston H gets beyondthe exhaust-aperture R toward the end of the cylinder B, whatever steamor air that is in space 0 becomes closely compressed and acts as acushion, preventing the piston from moving farther in that direction,thus frequently obviating danger of buttering 011' the end of thecylinder.

Having thus described my invention, what I claim is-- 1. A cylinderprovided with a piston for connecting with a carriage, and with a supplyand exhaust port leading into the valvechests at each end of saidcylinder, and located as shown, in combination with valves to each otheras set forth, in combination with located in said steam-chests andconnected a valve located in said valve-chest, all suh- [O by a hollowrod all substantially as described stantially as described, whereby thecushion and shown. is formed in the end of said cylinder.

2. A cylinder provided with a piston, and WILLIAM E. HILL. with a supplyand an exhaust port leading Witnesses: into a valve-chest, said portslocated in the J. S. DUER, position to the piston and to the valve andJOHN G. PERKINS.

